What does the 'S' stand for in an automatic transmission car?

[Sienna]

In an automatic transmission car, 'S' stands for Sport mode. In Sport mode, the transmission can shift gears freely, allowing the engine to maintain higher RPMs for extended periods. This enables the car to drive at lower gears with higher RPMs for a longer duration, resulting in greater torque output and acceleration. An automatic transmission eliminates the need for the driver to manually shift gears, as the vehicle automatically selects the appropriate gear based on driving speed and traffic conditions. The method to use the 'S' mode in an automatic transmission is as follows: 1. Shift the gear to 'D' (Drive) and push the gear lever to the right to engage Sport mode; 2. Use forward and backward pushes of the gear lever to shift gears—forward for upshifts and backward for downshifts; 3. Push the gear lever to the left back to the 'D' position to switch between 'S' and 'D' modes.